Solar lamp



FIG. 1 is a first perspective view of an embodiment of a solar lamp showing my new design;

FIG. 2 is a second perspective view of the embodiment of a solar lamp showing my new design;

FIG. 3 is a front elevation view of the embodiment thereof;

FIG. 4 is a rear elevation view of the embodiment thereof;

FIG. 5 is a left side elevation view of the embodiment thereof;

FIG. 6 is a right side elevation view of the embodiment thereof;

FIG. 7 is a top plan view of the embodiment thereof; and,

FIG. 8 is a bottom plan view of the embodiment thereof.

The broken lines in FIG. 1 through FIG. 8 illustrate portions of the solar lamp which form no part of the claimed design. 

CLAIM The ornamental design for a solar lamp, as shown and as described. 